Chapter 675 We seem to have acquired alien technology

  The runway was approaching, and Salah tried hard to control his fear. He told himself silently in his heart: Trust the instructor, trust the instructor, the landing of the carrier-based aircraft is like this!

Finally, the plane jerked violently, the landing gear had hit the runway, and continued to slide forward, his body began to jump forward, the seat belt tightly held his body, and he felt that his eyes began to dim again .

He didn't know when the plane stopped or how it slid back to the tarmac. When the canopy opened, he tried to stand up and tried to walk down the ramp by himself, but for some reason, two The legs are shaking involuntarily!

   Shame, what a shame!

   "Salah, what do you think?" Delano said to him: "After this flight, do you have a more comprehensive understanding of the takeoff and landing of our carrier-based aircraft?"

"The dancer on the tip of the knife, the eagle in the blue sky." Salah said: "Sure enough, the take-off and landing of carrier-based aircraft is the most difficult. This is just a small trainer aircraft. If it is a larger fighter jet, It will definitely be more difficult to take off and land. I think it takes a lot of effort and hardship to master the takeoff and landing of this kind of aircraft."

  The carrier-based aircraft pilots of the U.S. Navy have never looked down on Air Force pilots. In their eyes, the Air Force's smooth and stable flight cannot be regarded as a flying veteran at all, and it is nothing at all.

   Now, Salah can be regarded as realizing that this take-off and landing is not something ordinary people can bear.

   "It seems that this kind of take-off and landing is a great challenge for us." Salman also understood that if they want to realize the take-off and landing of carrier-based aircraft, it is not so easy. Their elite pilots have come to this conclusion: Carrier-based aircraft are not something that ordinary countries can play.

  So, they still put the J-31A on land and forget it, as long as it is well protected, aren’t those Dongfeng-3 missiles also well protected?

  He thought for a while, and then continued: "Mr. Qin, your aircraft is one aircraft with three types. The vertical take-off and landing fighter has never been shown. I wonder how the development is going?"

   "Everyone, the technical difficulty of this aircraft is the greatest. However, we have achieved phased results. If you guys want to see it, we can arrange a performance of a vertical take-off and landing fighter."

   "Okay, great!"

   "Where is the fighter plane?"

   "Did you see it? Aren't there three black fighter planes on the tarmac over there?"

Now, when you see the black-skinned fighter plane and look at its general shape, you can tell that it is the J-31A. They are used to the appearance of this kind of plane at the naval aviation training base in the east, and they don't think there is anything wrong with it. of.

  However, when Qin Tao said this, they suddenly realized: "Could it be that one of them takes off and lands vertically?"

   "That's right." Qin Tao nodded: "When we were designing, there are three types of one aircraft, and the vertical take-off and landing fighter has the same shape as other models. If you don't look carefully, you can't tell the difference at all."

The American JSF also has three models in one machine. However, when the vertical take-off and landing F-35B is put together with the other two models, the difference between them can be found immediately: this B-type is obviously fatter, with a full circle of fat, plump The famous F-35B has won the title of "Fertilizer" for all.

   So, what causes it to be fatter?

  First of all, there is the huge lift fan. The diameter of the F-119 is 1.17 meters, and the diameter of the lift fan is 1.27 meters. To put this thing in, the body needs to be thicker.

  The second is the requirement of flight range. The space of the airframe is occupied by the huge lift fan, but the flight range must meet the standard and the wings must be folded, so we can only find ways to make the airframe fatter and carry more fuel.

The aircraft produced by Mingzhou Group will not do that. One aircraft and three types are intended to make the parts common, so as to reduce production costs, just like BMW’s three-cylinder engine, with a single cylinder of 0.5 liters. The three-cylinder is 1.5 liters, and the four-cylinder is 2.0 liters, so that most of the parts can be used in common, and the cost saved by the car company will become profits, and it will definitely not be given to users.

  If the vertical take-off and landing model is different from other aircraft, it will be difficult to produce on the same line.

  So, the airframe of a vertical takeoff and landing fighter is the same as the others. As for occupying the internal fuel space, at worst, the flight range will be shortened.

Look at the other two fighter jets of this era, whether it is the Sea Harrier or the Yak-38, they are all proper mast defenders. Don't look at the Sea Harrier boasting that it has a range of more than 2,000 kilometers. In fact, the combat radius of vertical take-off and landing is also It is only one or two hundred kilometers, and short take-off and landing means a combat radius of 300 kilometers. This vertical take-off and landing fighter of our own side can extend the combat radius to six to seven hundred kilometers when it takes off by ski jump, which is already very good .

Vertical take-off and landing fighters are mainly used on amphibious assault ships. When it is needed, the carrier-based aircraft of the aircraft carrier has already completed the task of seizing air supremacy. The amphibious assault ship can launch an attack two to three hundred kilometers away from the target. Range is not an issue.

   Of course, it will be more convenient when the new WS-15 is successfully developed and the fuel consumption rate is further reduced, and the range of this vertical take-off and landing fighter can be increased by several hundred kilometers.

  The Saudi visitors had no reaction to those black-skinned planes, but now, when they heard that there were vertical take-off and landing fighters among them, they immediately became interested.

   "President Qin, does this mean that this aircraft has been developed and matured?"

"The research and development has matured, but we are responsible. It is impossible to directly introduce such a brand new aircraft to the market. We must conduct a large number of flights in our own hands, so as to expose various hidden defects. , when it is delivered to the troops, it will definitely be the most mature aircraft, and now it is being used and tested at our wasteland village base."

   "Then can we appreciate it?"

   "Of course, let's take a closer look first, and let our designer introduce it to you. After the static visit, we will give you a flight show."

"good!"

   Everyone strode towards the plane. Salah had already recovered. At this time, he was striding forward and walking in the front.

  He has already given up catapult takeoff and blocked landing. If he is flying this kind of vertical takeoff and landing fighter, it should be much easier to take off and land vertically with a ski jump!

Plesakov didn't come. Although Qin Tao had already sent out an invitation, this old aircraft designer was already indifferent to fame and fortune. He just wanted to continue doing research, so it was Zhao Dangsheng who introduced it to everyone. .

   When everyone passed by, Zhao Dangsheng was directing a group of ground crews to do maintenance.

   "Old Zhao, come, introduce to our guests, you should have met before?" Qin Tao shouted.

  Zhao Dangsheng put down his work and greeted him: "Of course I know you, Your Excellency Salman. We met again. Are you interested in our vertical take-off and landing fighter this time?"

   "Yeah, I didn't expect that your fighter jet is also mature, let's come and take a look." Salman said.

   "Well, let's first look at the appearance. From the appearance, you can't see any difference. However, when you turn to the back, you can see that our engine exhaust pipe is very different from other fighters."

   There is no difference in the front and side, but the difference between the chrysanthemums is very big.

For the vertical take-off and landing engine in front of you, the tail nozzle can be rotated downward by more than 90 degrees from the horizontal state. It uses a unique three-stage rotating structure. The core technology of take-off and landing engines.

  However, these parts are all wrapped in the body, what the big guy sees is still an ordinary diffuser-convergent tail nozzle, and it seems that there is no difference!

   "Now, we are undergoing maintenance, and we can demonstrate it to everyone." After Zhao Dangsheng finished speaking, he shouted to a ground crew: "Test the tail nozzle rotation!"

"yes!"

In the surprised eyes of everyone, the body skin under the engine exhaust nozzle was folded directly to the two sides, revealing the three-stage rotating structure inside, the middle two sections began to rotate, and the exhaust nozzle began to downward Sended.

   It's like science fiction! Everyone present opened their eyes wide, watching this incredible scene.

  The tail nozzle gracefully rotated from horizontal to vertical before their eyes, and then converged to the minimum, which can provide the strongest thrust.

  The internal mechanism is exposed, and those pipes are full of industrial beauty.

   "Beautiful, so beautiful, I didn't expect you to be able to break through these technologies." Salman said: "Eastern technology is already the strongest! We are very satisfied!"

  Of course they know that the JSF joint attack aircraft of the United States is still in the research and development stage, and it is even difficult to produce. This fighter jet from the East has already begun to be delivered. In this industry, the United States has also fallen behind!

   They were full of praise.

"Let's take a look again. In order to propel this fighter plane to take off, we also need a special engine in the front. We use the lift fan method. At this time, when the rear rotating nozzle moves, the front lift fan also will open."

  So, everyone stepped forward, got under the plane, and looked up at the lift fan.

   This is the biggest difference between it and the Yak-141. By replacing the lift engine with a lift fan, the problem of the tail nozzle scorching the flight deck is avoided. Let this vertical take-off and landing aircraft finally develop and mature. Although this thing will take up valuable space in the airframe, it is also necessary.

  Other ordinary land-based and ship-based types are equipped with large fuel tanks here, so that the goal of versatility can be better achieved.

   The United States is currently bidding for two projects, one uses the Sea Harrier's mid-engine layout, and the other uses the Yak-141 lift fan, and they have both been successfully taken away! Thinking of these, Qin Tao felt a sense of accomplishment.

  At this time, these people began to study carefully. This was the first time to observe Dongfang's vertical take-off and landing fighter at close range. They watched it very carefully, and Zhao Dangsheng on the side kept introducing it.

   "Are there only these two nozzles? How to control the attitude during vertical take-off and landing?"

   "We also bleed air from the compressor of the engine and blow it to the tip of the wing to control the attitude and avoid the influence of crosswinds and other effects." Zhao Dangsheng introduced.

The front lift fan and the rear main engine are powered, and the attitude adjustment is carried out through the airflow at the wingtips. These controls are very complicated, and the pilot cannot take care of them at all. Therefore, advanced aircraft must be used. control.

  Even the Yak-141 was designed to introduce a quad-redundant fly-by-wire flight control. Without the precise control of an electronic computer, it is impossible to tame this monster. Even so, the pilot's ejection is also automatically controlled. In case of an accident, the computer will judge whether to eject at any time.

   At this time, everyone nodded after hearing these introductions.

"Of course, this vertical take-off and landing scheme still has certain risks. However, compared with the intercepted landing scheme, we believe that this scheme will still be suitable for the actual situation of some countries, such as your side. "

  The danger of vertical take-off and landing is very great. After the US F-35B is in service in large quantities, accidents often occur, and even cause the plane to crash. The failure rate of this thing is high. As for the Sea Harrier, it is even more of a crash master. When the U.S. Marine Corps replaced the Sea Harrier with the F-35, a total of more than 300 Sea Harriers had already dropped a hundred. Ten.

Now, the Saudi visitors were very excited to see the Transformers-like vertical take-off and landing fighter jet. After watching it for more than half an hour, Salman asked, "Excuse me, when can we watch its performance? "

   "It's ready now." Qin Tao said: "Our plane doesn't need to taxi, it can take off directly from this parking stand. You can watch it from a distance."

  Salah walked back, unexpectedly found that Delano was following, and asked curiously: "Instructor, didn't you fly that plane?"

   "Of course not, this aircraft is still being flown by the Flight Test Institute." Delano said.

   This plane has just arrived at the base, who can fly it? Delano didn't even dare to go up directly. After all, the takeoff and landing of this kind of plane is different from that of ordinary planes!

   Its test pilot is of course Lei Qiang!

The current Lei Qiang is already the queen test pilot of the J-31A, and he is allowed to fly any difficult projects, even making Mr. Song unhappy. The test flight of the J-10 is still waiting for Lei Qiang , but Lei Qiang always ran this way.

  However, Lei Qiang has the right to choose, and he still can't help admiring this kind of aircraft.

   Fully dressed, he walked to the plane and watched the canopy flip forward.

   This method was once used on the MiG-21. At that time, the canopy could block the wind when ejecting at high altitude, but it turned out to be a chicken rib. This ejection method is very complicated, resulting in a pitifully low success rate of ejection.

Now it is popular to explode the canopy. There is no need to flip the canopy when ejecting. It is made to be flipped forward. It is for the convenience of vertical take-off and landing models. There is a lift fan behind the cockpit. There is no place to arrange the flip mechanism, so simply move it to the front. Yes, one machine has three models, and the other two models have to do the same.

  Lei Qiang skillfully got into the cockpit and prepared to take off. Hundreds of meters away, everyone was watching all this intently.

The roar of the engine sounded, and after a few seconds, the engine entered the full power output state. Although the tarmac had been cleaned, the dust outside the tarmac was still blown away. However, the black The fighter plane is still clearly visible in the dust.

"Vertical takeoff consumes a lot of fuel, so we still recommend using a short-distance ski jump to take off if conditions permit. This will not only reduce fuel consumption, but also increase the maximum takeoff weight." Zhao Dangsheng told everyone Continue to introduce.

  The turbofan-15 engine imitated from the R-79 engine has a maximum afterburner thrust of 152 kN. Combined with the front lift fan, there is a certain margin, and it can also guarantee a take-off weight of more than 20 tons.

  However, this is in the afterburner state. If it doesn’t matter on land, but on a warship, in order to avoid the tail flames from scorching the deck, if you have to give up using afterburner, then the thrust will be further reduced.

  The lack of the engine is flawed.

Looking at the F-35 of later generations, the thrust without the afterburner is 128 kN, and the thrust is 181 kN when the afterburner is turned on. Therefore, even if the afterburner is not turned on, the vertical take-off and landing fighter can have a maximum take-off weight of 17 tons. If you turn on the afterburner and roll, the maximum take-off weight can soar to 27 tons.

   What is even more enviable is that the thrust of the improved F-135 engine has reached 23 tons. If it is installed in the F-35B, it can take off vertically without afterburner, and it can have a take-off weight of more than 20 tons.

  This is not comparable to our own side. The basic industry is backward, so we can only make do with it. Of course, now that the Americans are being fooled into going astray, our side may still take advantage of this opportunity to develop quickly, and finally stand on the same starting line as the United States.

   Now, it is not convenient for Zhao Dangsheng to say these specific data, so let's blur them first.

   "It's flying!" At this moment, there was a cheer from the crowd.

  Pull the onion on the dry land, this black-skinned fighter plane flew directly from the tarmac, and began to transform at a height of tens of meters above the ground.

   The thrust must be reserved enough, it is for changing use.

If the thrust of the vertical takeoff is 20 tons, the fighter will be 20 tons. Even if the fighter can be pulled up, when it is turned into level flight, the engine nozzle will rotate backwards, and the vertical downward thrust is not enough, and the wings have not yet produced Lift, the plane will definitely fall.

  The nozzle of the engine is slowly turning backwards. This process is the most dangerous. Almost all crashes of vertical take-off and landing fighters occur during this process.

Now, with the rotation of the nozzle, the plane also begins to fly forward. It accelerates from zero in the horizontal direction. As the speed gradually increases, the lift of the wings is also increasing, and it flies forward. About one thousand meters, the speed is enough, the top cover of the lift engine on the back of the aircraft is closed, and the aircraft has turned into a normal flight state.

   If you use one word to describe it, it is handsome! Even Delano, who has always been picky, is full of envy in his eyes watching the state change of this plane.

   It's spectacular!

   "How do you feel?" Qin Tao asked with a smile.

   "It's amazing, your operation is so beautiful!" Salman said: "Your technology is really powerful!"

   "That's right, our technology is very powerful, as if it has alien technology." Qin Tao said proudly.

   These words were originally boasted by Americans, but now Qin Tao has taken them over. I don’t know what it would be like to be heard by those Americans.

  Now, while listening to Qin Tao's words, everyone watched the fighter plane switch modes, fly forward, circled over the airport, and then flew back again.

   This time, I did not return to the apron just now.

   There are two planes below. If you make a mistake during the operation, it may affect the other two planes. At this time, the plane is directly above the runway. In front of it, there is a circle drawn just yesterday.

After the plane flew over, the cover of the air intake of the lift fan on the back of the plane was opened again. In the eyes of everyone, it began to switch states with a graceful posture, just like an elegant fairy .

   At the rear, the lower cover of the engine was also opened, the nozzle changed from horizontal to vertical, the fuselage began to slow down, and finally hovered steadily, and then slowly fell.

   "How can it be so accurate?" Salah asked in surprise.

  He has seen the landing of the sea harrier, which is wobbly, and has to be adjusted left and right, otherwise, it is impossible to accurately align the position below.

   Now, it actually succeeded once?

"Everyone should know that this kind of aircraft is also very dangerous during take-off and landing, so we have used a lot of advanced technology, which can now be controlled by computer, which is more accurate than manual control." Qin Tao said: "The role of the pilot is to take over the management right at any time when needed, such as suddenly accepting the task again and flying away again. Under normal circumstances, autopilot is enough."

  The take-off and landing are dangerous, and accidents may happen at any time, so the method they use is to let the computer control it!

   "Sure enough, your technology is like alien technology!" Salman said: "We are very interested in this kind of fighter. We hope to purchase 30 aircraft and equip them on our own aircraft carrier."

  Computer-controlled take-off and landing, without human manipulation, these advanced technologies have conquered Salman, and he has decided to follow the plan recommended by Qin Tao: use vertical take-off and landing fighter jets on the aircraft carrier purchased by his own side to reduce the complexity of the operation!

   Salah nodded: "Yes, I also think this way of taking off and landing is more suitable for us."

   "Everyone has made the most correct choice." Qin Tao is very satisfied. In this way, the vertical take-off and landing fighter is also sold. With Saudi funds, the research and development of this fighter will be more abundant.

  Back then, the old Dassault hoped to rely on Saudi funds to support the Mirage 4000 project. Unfortunately, he failed. Saudi Arabia finally chose the F-15. However, in terms of the fourth-generation aircraft, Saudi Arabia has no choice!

  (end of this chapter)